Test the Temperature on Your Dehydrator for Safe Dehydrating

This post contains affiliate links. This means if you make a purchase through these links, I may receive a small commission at no extra cost to you. Click here to read my disclosure policy.

How do you know your dehydrator is running at the temperature the dial suggests? Test the temperature on your dehydrator! Here’s the easy how-to that anyone can follow.

Just like with an oven, temperatures can fluctuate on dehydrator models. Before you start dehydrating your first jerky or batch of raw crackers, you want to know the true temperature your dehydrator is running for safety reasons as well as keeping living foods alive. An oven thermometer is a great dehydrating tool to help you on your dehydrating journey!

Running too hot can kill enzymes for things you want to keep ‘alive’ such as with herbs and raw foods. Running too cool can be a food safety issue with jerkies.

Why Should I Test My Dehydrator?

You’ve purchased a used dehydrator and want to be sure it works correctly.

You have a dehydrator that has no temperature dial

Your food consistently taking longer than anticipated to dry – or – taking much less time to dry and seems to be over dry.

How to Test Dehydrator Temperature

Test your dehydrator when it is empty

Place your thermometer or probe inside your machine

Run for at least 15 minutes to allow the machine to fully warm up and come to temperature.

Here is a video showing my dehydrator. My dehydrator was set for 150F, and you’ll notice that the temp climbs up to 10 degrees over that before it drops back down and settles around 150 (it bobs up and down).

What Thermometer Do I Use for My Dehydrator?

Vertical Flow Dehydrator

For those dehydrators that have a bottom-up or a top-down fan, use a probe thermometer. This thermometer is perfect for those of you with stackable dehydrators where a stand-up oven thermometer might not fit. You can place the probe inside, and the unit to measure is outside.

TIP: Do not use a stand-up/hanging thermometer with these machines if it means laying down the thermometer. It will not be able to record a proper temperature reading this way.

Horizontal Flow Dehydrator

Remove one or two trays to make room for the thermometer. A probe thermometer will also work if that’s what you have.

Keep probe or thermometer closer to the door than the back fan.

Here is a video showing my dehydrator. My dehydrator was set for 125F, and you’ll notice that the temp climbs up to 10 degrees over that before it drops back down and settles around 1250 (it bobs up and down to maintain the temp – and as the probe move. The oven thermometer ends up being the most accurate.

How Often Should I Check My Dehydrator’s Temperature?

Check your dehydrator 2-3 times per year if you use it often.

Check it when you pull out of storage to begin a new season

Check it if you’re having problems getting foods to dry in a reasonable amount of time

What if the Temperatures are Wrong

Unfortunately, because there are so many dehydrators, and so many ways to go about doing things, you’ll need to check with your dehydrator’s manufacturer.

If you no longer have the manual, do Google search for the manufacturer and model number, and you’ll likely find the .pdf to download and read through. Or you can try to contact the manufacturer directly.

Use a secondary thermometer if you have one to cross-check the temperature. I use a meat probe to double check.

Some things to check for:

Make sure your fan has no obstruction to allowing air flow to be free

Dehydrating Temperature Chart:

These are general temperature guidelines for foods. You may choose to dry some foods a little cooler to prevent case hardening. You may want to run something a little hotter for the first hour to help with initial condensation as fruits and veg let off initial moisture. These are general guidelines.

Your email address will not be published. Required fields are marked *

Comment

Name *

Email *

Website

Primary Sidebar

Search this website

I'm Darcy! I've spent the last twenty years learning how to stretch our budget to meet the needs of our growing family, all while making a home be a space more than just a place to sleep and eat. I believe in having a purpose in all aspects of our lives - including the pantry and our home. Let me show you how to create a pantry and home that has greater purpose... Read More…

Footer

Disclosures

You’re welcome and encouraged to link to ThePurposefulPantry.com, or use a single image with a brief description to link back to any post. Republishing posts in their entirety is prohibited. Feel free to pin on Pinterest!